With the day by day life where development is happening every second and there is considerable traffic throughout the roads, it becomes very difficult for the people who are physically challenged and particularly the blind to find path without any help. The proposed project design has been made to assist the blind people in order to find path without any obstruction caused by obstacle.

Design

In order to implement the design we require a path clearing stick and a safety cap. Path clearing stick is used to detect the obstacle which is coming in front by using an obstacle detector. This obstacle detector is used send a signal when an obstacle comes in front, to the microcontroller and thus sends a vibrating signal near the hand holding the stick. Similarly for any obstacle coming way near the head can be detected using a cap. The similar sensor based system is used in case of a cap too.

Working model

In case of the assist stick and safety cap similar kind of process flow is quite similar. The obstacle sensor detects the obstacle coming in front and sends then signal to the microcontroller via a relay. The microcontroller is designed in such a manner that the input fed signal is then fed to the vibration module which is thereby connected to the assist stick or safety cap.

Conclusion

The blind person can get an alarm about the incoming obstacle. The path clearance assist utilizes a reset circuit whereas the safety cap uses crystal.